I never got a PIC check in the Twotter, but I flew right seat on jumper drops and repositioning flights a number of times. Very versatile and flexible airplane, but slower than death and noisy as hell in the cockpit. A short and soft field takeoff is impressive, as the extended flaps tend to raise the mains off the ground first, so you're wheelbarrowing on the nose gear for a bit before you lift off and accelerate into a climb in a nose low attitude like a helicopeter or a BUFF. Those power lines at the end of the grass strip look like they're going to be in your lap until the last seconds.
Needless to say, that sort of takeoff is not approved for airline operations. Interestingly, Pilgrim's Twin Otters, Precision's Dornier 228s, and our 1900s were the only airliners approved to land on KBOS Rwy 33R, which is 2600 feet with water at both ends. Came in mighty handy on a post cold front day with a howling northwest wind and ALL arriving and departing traffic lined up for 33L.
"Clearance, MetroAir 1425 with delta, IFR Boston, ready to copy."
"MetroAir 1425, Clearance, ground stop in effect for Boston, expect update in one to one and a half hours....err...1425, can you accept 33 Right?"
"Affirmative, ready to copy."
"ATC clears MetroAir 1425 to the Boston Logan Airport via Burlington Four Departure then flight plan route, climb and maintain five thousand, expect one seven thousand ten minutes after takeoff....."